Types of allergy and there symptoms


Allergies are hypersensitive immune responses to substances that either enter or come in contact with the body, like pet dander, pollen or bee venom. A substance that causes an allergic reaction is called an “allergen”. Allergens can be found in food, drinks or the atmosphere.

Types of Allergy

Allergy is a multi-organ disease, affecting approximately one in three of the population in the UK at some time in their lives.  Each year the numbers are increasing by 5% with as many as half of all those affected being children.

  • Severe Allergy and Anaphylaxis
  • Respiratory Allergy
  • Food Allergy
  • Skin Allergy
  • Rubber Latex Allergy
  • Drug Allergy
  • Allergy to Wasp and Bee Stings

Signs and symptoms of allergies?

A symptom are a few things the patient feels and describes, whereas an indication will be detected by others too. Pain is a symptom and a rash is a sign.

When someone with an allergy comes into contact with an allergen, the allergic reaction is not immediate. The immune system gradually builds up sensitivity to the substance before overreacting to it.

The immune system needs time to recognize and remember the allergen. Because it becomes sensitive to it, it starts creating antibodies to attack it – this method is called sensitization.

Sensitization can take from a few days to several years. In several cases the sensitization process is not completed and therefore the patient experiences some symptoms but never a full allergy.

Common symptoms of an allergic reaction to inhaled or skin allergens include:

  • Itchy, watery eyes
  • Sneezing
  • Itchy, runny nose
  • Rashes
  • Feeling tired or sick
  • Hives (a rash with raised red patches)

Other exposures will cause different allergic reactions:

  • Food allergies. An allergic reaction to food allergens can also cause abdomen cramps, vomiting, or diarrhea.
  • Insect stings. The allergic reaction to a sting from a bee or different insect causes local swelling, redness, and pain.

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Allerga used in chronic idiopathic urticaria

Allegra (fexofenadine):

Allegra

Allegra is second generation antihistamines. Allegra is primarily used to treat seasonal allergies and chronic hives. Allegra works by blocking the action of one of the body’s natural chemicals known as histamine which is responsible for many of the symptoms caused by allergies.

How should it take:

  • Take Allegra as your doctor has prescribed.
  • Do not increase or decrease your dosage unless your physician tells you to.
  • Take the regular tablet with a full glass of water. Do not take Allegra with fruit juice (such as apple, orange, or grapefruit).
  • Do not swallow the tablet whole. Allow it to dissolve in your mouth without chewing.
  • Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
  • Do not take if you are allergic to any drugs, or if you have kidney disease.
  • Do not take if you are pregnant or breastfeeding, without discussion with your physician.
  • Do not take if you are taking medications like ketoconazole, erythromycin or cimetidine, which may increase the blood levels of fexofenadine.

Side effects:


Tell your physician right away if you have any following symptoms Rare side effects are:

  • Rash
  • Sleeplessness
  • Terrifying dreams
  • Trouble sleeping
  • Nervousness
  • Common side effects are:
  • Back pain
  • Muscle aching or cramping
  • Dizziness
  • Headache
  • Nasal congestion
  • Stomach upset
  • Unusual feeling of tiredness or weakness

Storage:

Allegra should store at room temperature below 25 degrees C, keep away from light and moisture, and keep it out of the reach of children.

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Allegra works by being an antagonist to the H1 receptor

Allegra
Allegra (fexofenadine) is an antihistamine that reduces the effect of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Allegra is also used to treat skin itching and hives caused by a condition called chronic idiopathic urticaria in adults and children.

Important information about Allegra :

  • Ask a doctor or pharmacist before taking Allegra if you are allergic to any drugs, or if you have kidney disease.
  • Do not take Allegra with fruit Juice (such as apple, apple, orange, or grapefruit)
  • It may be other drug that can affect Allegra. All about medication you are use.
  • You get emergency medical help if you think you have used too much medicine, or if you have any of these signs of an allergic reaction.
  • You are do not start a new medication without telling your doctor.

Allegra side effect:

  • It emergency medical help if you have any of these signs of an allergic to all allergy hives; difficulty breathing; swelling of your face ; lips tongue; or throat.
  • There is nausea, diarrhea, upset stomach.
  • Headache, or muscle or back pain.

Allegra( fexofenadine) of mechanism :

Histamine is a chemical that is responsible for many of the signs and symptoms of allergic reactions, for example, swelling of the lining of the nose, sneezing, and itchy eyes. The attachment of the histamine to the receptors causes the cells to be “activated,” releasing other chemicals that produce the effects.

Precaution of Allegra :

  • Before taking fexofenadine, tell your doctor or pharmacist if you are allergic to it; or if you have any other Allergies.
  • Before having surgery, tell doctor dentist about all the products yoyo use (including prescription drugs, nonprescription drugs, and herbal products).
  • The rapidly-dissolving tablets may contain aspartame.

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Allergy relief from indoor and outdoor allergies

Allegra has been variously referred as the second-generation or may be a third –generation anti-histamine. It can be selectively peripheral H1-bloker in the GI pathway, big arteries and, along with bronchial sleek muscle. Fexofenadine, such as other second and third-generation anti-histamines, will not quickly cross your blood-brain screen, and thus causes less sleepiness as compared to first- generation histamine receptor antagonists. The item functions by as a bad character on the H1 receptor. Congestion stops your initial in the H1 receptors through histamine, stopping your signs or symptoms related to allergic reactions via occurring. Fexofenadine won’t readily cross knock your blood-brain barrier and it is consequently less likely to bring about tiredness. What’s more, it demonstrates zero anticholinergic, antidopaminergic, alpha1-adrenergic, or perhaps beta-adrenergic-receptor-blocking outcomes.

Fexofenadine have trade names like Allegra, Fexidine, Telfast, Fastofen, Tilfur, Vifas, Telfexo and Allerfexo. It is absolutely an anti histamine pharmaceutical drug utilized in treating hay temperature, allergic reactions, and urticaria. It turned out formulating as a successor relating and alternative to popular terfenadine anti histamine that will brought on this phase of perseverance, potentially in the end causing heart failure arrhythmia.

For allergic rhinitis and urticaria in adults and children aged 12 and older is 60 mg orally, twice daily the two dosages should have spaced 12 hours distant or 180 mg once daily. For children under 2 to 11 years old, 30 mg twice daily is recommended for the children 6 months to 2 years of age, 15 mg twice a daily.

The side effects reported are Headache, Vomiting in children, Somnolence or fatigue, Diarrhea, Musculoskeletal and dysmenorrheal. Sedation occurs due to Antihistamines (loratadine, cetirizine, and acrivastine).

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